Pour the warm water and milk (about 110-115 degrees F) into the bowl of a stand mixer. Sprinkle the yeast over the liquids. Allow it to sit for 2-3 minutes until it is slightly frothy. ¼ cup warm water (110-115ºF), 1 cup 2% milk, 1 package instant yeast

Add the sugar, egg, salt, potatoes, butter and flour. ¼ cup granulated sugar, 1 large egg, 1 teaspoon salt, ½ cup mashed potatoes, ¼ cup salted butter, 4 cups bread flour

Use the paddle attachment to mix the ingredients just until combined. Allow the dough to rest for 5 minutes.

Then switch to the dough hook and beat on medium-high speed for 5-7 minutes. The dough should be slightly sticky.

Spray a large bowl with cooking spray. Place the kneaded dough ball into the greased bowl and cover with plastic wrap or a kitchen towel. Set the bowl in a warm place until the dough has nearly doubled (about 30 minutes).

Divide the dough in two and shape into two loaves. Place the dough into two greased 9x5 loaf pans.

Cover the pans and put them in a warm place, allowing the dough to rise again white the oven is preheating to 350ºF.

If you want a golden brown top, whisk together one egg and a tablespoon of water. Brush this egg wash over the top of the loaves before baking.

Bake the bread (uncovered) for 30-35 minutes or until the tops are dry and firm, with a golden brown color.

Remove the bread from the pans and allow the loaves to cool on a wire rack.